Patent GB-256438-A (GB)
Title: Improvements in reed weaving machines
IPC: D03D41/00
Filed: 1925-10-26
Abstract: 256,438. Lloyd, M. B. Oct. 26, 1925. Circular looms; looms for weaving wickerwork. -A tubular fabric comprising reed stakes 21, woven with filler strands 21<a> is made on a circular loom. The fabric is woven with a design by causing the filler strands to pass over and under adjacent stakes, adjacent strands passing over and under the same stake at some parts of the fabric, whilst several strands pass over or under the same stake, at other parts of the fabric. Stake supporting device. The stakes are supported between the convolutions of helical springs in grooves in rings 18, 24. The lower ring 18 is fixed to a shaft 8 rotated bv bevel gearing from the main shaft 11. and is provided with notches to receive the stakes. The ring 18 is connected by posts &c. 23 to the upper ring 19, which is thereby rotated and is caused to rise away from the lower ring as weaving progresses by means of a non-rotative threaded rod 14. Stake shedding devices for a plain weave. Stake-projecting plungers 31 are reciprocated in arms 30 at each end of a fixed standard 6 by levers 33 operated by a star wheel 37 furnished with projections 39. Ratchet teeth 41 on the underside of the star wheel are operated by a spring-controlled pawl 43 on a gear 42. which is rotated by a ring gear 16 on the top end of a cylinder 15 on the rotating shaft 8. The plungers move alternate stakes away from the others thus forming sheds to receive the filler strands and a plain weave results. In the machine shown, there are two filler strands and two sets of stake manipulating devices, which act similarly. Spring-controlled levers 54 return the displaced stakes to normal position in turn. Pattern-weaving. To produce a pattern, several successive strands are caused at certain parts of the fabric to pass under (or over) the same stake. For this purpose the star wheel 37 is at times actuated independently of the part 42 by means of a connected ratchet wheel 81 operated by a pawl 83 and lever mechanism 79, 77 from a squared shaft 59, the rocking of which is controlled by lugs on pattern plates 85 on the cylinder 15. When it is desired to change from plain to pattern weaving, a handle is manually operated to cause a clutch carried by a block 61 to be engaged with a screwed shaft 56 driven from the cylinder 15. The block is thus raised gradually and a pawl on a bearing carried by the block 61 is carried into position to be engaged and rocked by the lugs on the pattern plates, the squared shaft being therebv rocked and the star wheel independently actuated to change the weaving. After the block has been raised to a certain height, it is automatically released from the screwed shaft and returns to its normal position. Plain weaving is thus resumed until the handle is again operated. Positioning the stakes and feeding and packing the strands. Pins 22 on the lower ring engage a wheel 46 on a shaft 48 provided also with a wheel 47. These wheels 46, 47 engage and position the stakes, which are spread by spreaders 44 carried by hollow or grooved stands 45 through which the filler strands 21<a> are introduced after passing over guide pulleys 96 and tension devices 95 from supply reels. The filler strands are packed together by means of an inclined wheel 90 driven by the pins 22